It's a bad/cheesy movie. Fraser hams it up like you wouldn't believe. It's a movie for kids or like tom mentioned, it's amusement park stuff.
The 3D stuff is hit or miss. Sometimes it looks phenomenal, other times it's too much of a distraction causing my eyes to lose focus on what's actually happening. It's miles ahead of Superman 3D, considering this was actually shot using 3D cameras.
I was much more impressed with the subtle 3D stuff like the trees swaying in the background, than any of the foreground stuff. Even when it's not in your face like Jaws coming through the screen, the foreground stuff just didn't seem right. I wonder if there is a way to dial down the 3D so it doesn't pop as much. That would have helped the overall effect when things didn't NEED to pop.
One of the biggest problems with 3D is finding where to sit in the theater. Too close and the eyes have a hard time focusing on the 3D. Too far back and seeing the rest of the audience in your field of view, ruins the "magic" of being in the movie, even though the 3D looks better.
I'm one of those that likes to sit close enough to the screen where it fills up my field of vision. Not so much where I have to move my head to see something in the corner, but enough so that I have to dart an eye instead. That being said.... that is WAY too close for 3D.
Am I sold on 3D movies? No... not yet. There is too much of an eye strain right now when compared with it's 2D counterpart. The biggest problem with 3D is when the camera pans. Static shots look amazing, but when the camera pans, the 3D loses drastic quality and causes a nauseating effect.
The good news is that Cameron has already dismissed the 3D in this movie as garbage, so there is still hope for proper film makers to use this technology. He also says he solved the panning problem by playing with the film speed, IIRC. They showed a trailer for a 100% computer generated 3D movie right before it, which looked way better than Center of the Earth, however, they over did the 3D causing some cross eyed moments when shit is literally moving around on your nose.